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20464041 = 3132181223
BaseRepresentation
bin100111000010…
…0000110101001
31102111200101110
41032010012221
520214322131
62010340533
7335640633
oct116040651
942450343
1020464041
1110607a34
126a2a749
134316700
142a09a53
151be3646
hex13841a9

20464041 has 24 divisors (see below), whose sum is σ = 29842176. Its totient is φ = 12467520.

The previous prime is 20464027. The next prime is 20464057. The reversal of 20464041 is 14046402.

It is not a de Polignac number, because 20464041 - 25 = 20464009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20463999 and 20464017.

It is not an unprimeable number, because it can be changed into a prime (20464541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91656 + ... + 91878.

It is an arithmetic number, because the mean of its divisors is an integer number (1243424).

Almost surely, 220464041 is an apocalyptic number.

It is an amenable number.

20464041 is a deficient number, since it is larger than the sum of its proper divisors (9378135).

20464041 is a wasteful number, since it uses less digits than its factorization.

20464041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433 (or 420 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 20464041 is about 4523.7198189101. The cubic root of 20464041 is about 273.5250665786.

The spelling of 20464041 in words is "twenty million, four hundred sixty-four thousand, forty-one".

Divisors: 1 3 13 39 169 181 223 507 543 669 2353 2899 7059 8697 30589 37687 40363 91767 113061 121089 524719 1574157 6821347 20464041